The defendants appeal their convictions for distributing and importing cocaine and for conspiracy. Upon review of the record we affirm the convictions.
I. The Stake Out
Jorge Manotas-Mejia, Justo Estrada-Tel-lo, Julian Enriquez-Castro, and Samuel Ramirez-Rios were crew members on the Colombian ship CATALINA. Manotas was the ship’s second engineer, in charge of certain engine room equipment. On March 22, 1986, the CATALINA arrived at the port of Houston, Texas from Barranquilla, Colombia. A confidential informant had alerted the United States Customs Service that the CATALINA carried about fifteen kilograms of cocaine for delivery to one “Carlos Vaca” in Houston. Based on this tip, Customs agents staked out the port and placed the CATALINA under surveillance once it arrived.
At about 8:00 p.m. on March 22, agent Robert Mangle saw Marilou Buyoc and a man board the CATALINA carrying a television set box. The man disembarked almost immediately. Buyoc disembarked at about 8:30 p.m. carrying a Gucci style handbag. She left the port in a car. Mangle followed her a short distance and then stopped her and placed her under arrest. In her car, Mangle found the Gucci bag stuffed with about five kilograms of cocaine.
During “debriefing” after her arrest, Buyoc agreed to help the authorities catch her suppliers on the CATALINA. At 11:30 p.m., she returned to the ship with undercover agent Lorenzo Mesa posing as her husband and a cocaine buyer. Once on board, Mesa negotiated to buy three kilograms of cocaine for $72,000 and actually left the boat with four kilograms. The next day, March 23,1983, Mesa returned to the CATALINA and arrested the four appellants.
II. The Indictment
A four count indictment charged the appellants and Buyoc with various narcotics *363 offenses involving cocaine. Count I charged that the four appellants and Buyoc conspired to possess over 1,000 grams with intent to distribute, in violation of 21 U.S.C. §§ 846 and 841(a)(1). Count II charged all five defendants with possession with intent to distribute, in violation of 21 U.S.C. § 841(a)(1). Count III charged the four appellants (but not Buyoc) with distribution of the cocaine, in violation of 21 U.S.C. § 841(a)(1), and Count IY charged the appellants with importation, in violation of 21 U.S.C. §§ 952(a) and 960(a)(1).
Counts III and IV also charged violation of 18 U.S.C. § 2, which provides that one “who aids, abets, counsels, commands, induces, or procures [the] commission [of a crime] is punishable as a principal.”
After their arrest on March 23, the appellants were held without bail until trial. Buyoc, who also was arrested, was released on bail and fled the jurisdiction. Still a fugitive, she has not been tried.
III. The Trial
Without Buyoc, the government’s key witness at trial was agent Mesa, who explained his 11:30 p.m. purchase in detail. According to Mesa, he and Buyoc boarded the CATALINA and went to Estrada’s cabin, where they met Estrada and Manotas. The cabin was small, about six feet by ten feet. Manotas asked if Buyoc had been arrested earlier after she left with the handbag, and Buyoc and Mesa assured him that she had encountered no trouble. Mesa told Manotas and Estrada that he had found a buyer for the rest of their cocaine. Manotas and Estrada urged Mesa to speak quickly and quietly: Estrada warned that informants were on board, and Manotas told Mesa to use the slang term “aparatos” instead of “cocaine.” Manotas also bragged that he would bring twenty kilograms on his next trip.
At Manotas’ direction, Estrada called for Ramirez. Manotas told Ramirez that Mesa had found a buyer, and Ramirez and Mesa negotiated a price of $24,000 per kilogram for three kilograms. Ramirez demanded immediate payment, but Manotas assured him that Buyoc could be trusted to bring the money the next day. Ramirez left to get the cocaine, which Manotas and Estrada told Mesa was in the engine room.
Ramirez, accompanied by Enriquez, returned with a large bag that he handed to Mesa. Mesa emptied the contents, seven small packages, which Ramirez identified as three kilograms of cocaine. Enriquez told Mesa to pay in large bills, which would be easier to hide then a large number of small bills. Manotas told Buyoc to hide the bundles of cocaine in her clothes, but Mesa packed them in a box and left. Mesa returned the next day to arrest Manotas, Ramirez, Enriquez, and Estrada.
Aside from a chemist to identify the cocaine, the government’s only other witness was agent Robert Mangle, the Customs officer who had surveyed the CATALINA and arrested Buyoc on March 22. According to his testimony, he surveyed the CATALINA from the time it docked in Houston and saw Buyoc board the ship at about 8:00 p.m. without the Gucci bag and leave at about 8:30 with it.
Of the defendants, only Estrada did not testify. Ramirez and Enriquez testified that they worked until 10:00 or 11:00 p.m. on March 22, ate dinner together in Ramirez’s cabin, watched television, and retired for the night. They and Manotas denied selling cocaine on the 22nd and claimed that they first met Mesa when he arrested them on the 23rd. Ramirez also, testified that he physically resembled another crew member, also named Ramirez, with whom Mesa must have confused him. Manotas also called a character witness to vouch for his law abiding reputation.
The jury convicted Manotas and Ramirez on all four counts and Estrada and Enri-quez on Counts I, II, and III, but the district court vacated the convictions of all four appellants on Count II. The court sentenced both Manotas and Ramirez to twenty years on Counts I, III, and IV, to run concurrently, and sentenced both Estrada and Enriquez to fourteen years on Counts I and III, to run concurrently.
On appeal, each defendant challenges the sufficiency of the evidence to support his *364 convictions. In addition, Manotas claims that (1) a variance between Count I and the evidence at trial mandates reversal of his convictions, (2) his sentence constitutes cruel and unusual punishment in violation of the Eighth Amendment, and (3) he must be resentenced because of errors at his sentencing hearing. Finally, Ramirez claims that his identification by Mesa was improper.
IV. Standard of Review
We review the evidence in the light most favorable to the government and affirm if substantial evidence supports the verdict, that is, if a reasonable jury could have found guilt beyond a reasonable doubt.
Glasser v. United States,
V. Count I.
a. Sufficiency of the Evidence
All four appellants claim that there is insufficient evidence to uphold their convictions for Count I, conspiracy. A conspiracy is an agreement between two or more people to commit a crime.
United States v. Ortiz-Loya,
It is clear that the jury decided to believe Mesa and disbelieve the appellants. Mesa’s testimony clearly linked all four appellants to a conspiracy. Ramirez carried the cocaine to Estrada’s cabin, negotiated a price, and demanded immediate payment. Enriquez accompanied Ramirez with the cocaine and told Mesa to bring large bills. The transaction occurred in Estrada’s small cabin, and Estrada warned Mesa to speak quietly because informants might be listening. Manotas made many statements that manifest his involvement: he bragged that he would bring twenty kilograms on his next trip; he asked Buyoc if she had trouble after the 8:30 delivery; he suggested the term “apparatos;” he vouched for Buyoc’s reliability and persuaded Ramirez to delay payment. The evidence clearly supports the convictions on Count I.
b. Variance
Manotas also attacks his conviction for conspiracy on grounds of variance between the charge in Count I and the proof at trial. As far as we can tell from his brief, Mano-tas makes three mutually exclusive arguments: (1) Count I charged a conspiracy among the appellants and Buyoc to possess cocaine at 8:30 p.m., before Buyoc’s arrest, but the government did not prove such a conspiracy; (2) Count I charged a conspiracy among the appellants and Buyoc to possess cocaine at 11:30 p.m., while Buyoc was cooperating with the government, but the government proved at most a conspiracy among only the appellants at 11:30; and (3) the indictment charged one conspir *365 acy, but the government proved two — one at 8:30 and another at 11:30.
We reject these claims, and, for the reasons set out below, we find that the government proved the conspiracy that had been charged in the indictment.
An indictment is sufficient if it “first, contains the elements of the offense charged and fairly informs the defendant of the charge against which he must defend, and, second, enables him to plead an acquittal or conviction in bar of future prosecutions for the same offense.”
Hamling v. United States,
First, we explain that the indictment informed the appellants of the charge against them and guarded against surprise. Count I charged that the appellants and Buyoc conspired “on or about March 22,” without specifying the hour or any overt acts. As we interpret this phrase by its plain meaning, there was only
one
conspiracy with a single object, to possess cocaine “on or about March 22.”
See United States v. Winship,
We acknowledge that a government agent cannot be a co-conspirator and that there can be no conspiracy between one defendant and a government informer.
See United States v. Martino,
The district court instructed the jury that a conspiracy is “an agreement between two or more people to join together for an unlawful purpose” but did not instruct that Buyoc could not be a conspirator while cooperating with the government after her arrest. This omission theoretically created the risk that the jury could convict one of the appellants for conspiring only with Buyoc during the Mesa transaction. The trial testimony shows, however, that Buyoc sat almost mute while Mesa negotiated, so the jury must have convicted each appellant of conspiring with another appellant and not only with Buyoc. Thus, upon the record the jury convicted the defendants of the charged offense. 2
*366
Clearly, the mere fact that the jury did not — or could not — convict all named co-conspirators is no cause for reversal. As the Supreme Court stated in
Berger:
“Although an indictment charges a conspiracy involving several persons and the proof establishes the conspiracy against some of them only, the variance is not material.”
Moreover, the fact that Buyoc, a named co-conspirator, may have withdrawn from the conspiracy after her arrest did not end one conspiracy and begin another. Co-conspirators may come and go, and each change in membership does not create a new conspiracy.
See United States v. Leach,
As set out above, we find that the indictment charged and the government proved
one
conspiracy. Even if the government had proved two conspiracies, however, the variance might have been “harmless.”
Berger,
Next, we must address whether the appellants face “the risk of another prosecution for the same crime.”
Berger,
VI. Counts III and IV: Sufficiency of the Evidence
As set out above, Counts III and IV charged not only substantive offenses but also violation of 18 U.S.C. § 2. To prove aiding and abetting, the government must prove that the defendant “associated with a criminal venture, participated in the venture, and sought by his action to make the venture succeed.”
Holcomb,
The evidence supports the convictions for Count III, distribution of cocaine or aiding and abetting. In addition to the evidence summarized above, Manotas and Estrada sent for Ramirez, and Ramirez and Enriquez brought the cocaine to Estrada’s cabin.
The evidence also supports Ma-notas’ and Ramirez’ convictions for Count IV, importation. To prove importation, the government may prove by circumstantial evidence that the defendant brought cocaine to the United States from outside the country; the government need not show that the defendant was seen carrying the drugs across the border.
See United States v. Miranda,
VIL Manotas’ Sentence
a. Cruel and Unusual Punishment
Manotas claims that his twenty year sentence is disproportionate to his crime and violates the Eighth Amendment’s bar against “cruel and unusual punishments.”
See Solem v. Helm,
We acknowledge that Manotas received the maximum prison terms allowed by Congress under Counts I, III, and IV, 4 but this alone does not make his punishment “cruel and unusual.” Drug use is a serious problem in our society, and Mano-tas imported and distributed a large quantity of cocaine. The four kilograms delivered to Mesa had a “wholesale” value of at least $72,000 and, according to trial testimony, a “street” value after “cutting” of up to $640,000. Moreover, Manotas’ three sentences run concurrently. They could have been consecutive. His sentences are not “cruel and unusual.”
b. The Sentencing Hearing
After Manotas was convicted but before he was sentenced, a probation officer con *368 ducted a “presentence investigation” (“PSI”) and reported his findings to the district court, as provided in Fed.R.Crim.P. 32. The PSI included the defendant’s prior record, personal and family data, and sentencing information.
In addition, the United States Attorney filed a “Sentencing Memorandum” with the district court on July 31, 1986, two weeks before sentencing. In it, the government stated that if Buyoc had appeared at trial, she would have testified that (1) she received fifteen kilograms of cocaine from Manotas on March 21, the day before the Mesa transaction, and (2) she received the five kilograms at 8:00 p.m. on March 22 from crew members on the CATALINA.
During his allocution at the sentencing hearing, Manotas told the district court:
I’m not in agreement with the proof presented by the government attorney in the respect that one day before the ship arrived in the United States that some drugs were taken off the ship consisting of fifteen kilos of said substance.
The district court sentenced Manotas without addressing his objection to the alleged March 21 transaction.
In sentencing, the district court may consider factors not introduced into evidence at trial.
See United States v. Tucker,
If the ... defendant ... allege[s] any factual inaccuracy in the presentence investigation report ..., the court shall, as to each matter controverted, make (i) a finding as to the allegation, or (ii) a determination that no such finding is necessary because the matter controverted will not be taken into account in sentencing.
Rule 32(c)(3)(D) serves two functions. First, it protects the defendant from being sentenced on inaccurate information. Second, it creates an accurate record of the factors on which the district court relied at sentencing. Such a record is important, because prison or parole officials may consider information in a PSI when making correctional or parole decisions.
See United States v. Velasquez,
1 The fact that the information contested by Manotas appeared in the Sentencing Memorandum rather than the PSI in no way diminishes the dangers against which Rule 32(c)(3)(D) guards. In imposing sentence, the district court may have considered the government’s unsubstantiated but prejudicial allegation that Manotas de *369 livered fifteen kilograms on March 21. Moreover, the Sentencing Memorandum the government filed in district court is part of the public record, available to the Bureau of Prisons, parole commissions, or other agencies that will decide place of incarceration, parole possibilities, and other issues affecting Manotas. 6
The district court at sentencing is best situated to inquire into the contested Sentencing Memorandum, and its inquiry-may aid a parole or prison agency that might consider the Sentencing Memorandum at some future time. The district court did not state whether it relied on the Sentencing Memorandum. Thus, the court did rely or may have relied on the Memorandum, although no reliable evidence supported the allegation of a March 21 transaction. In light of the risks presented by the Sentencing Memorandum in this case, we remand for a new sentencing hearing to enable the district court to address Mano-tas’ objection to the Sentencing Memorandum as it would address a challenge to information in the PSI. It should (1) make a finding regarding the allegation that Mano-tas delivered cocaine on March 21 or (2) explain that it will not or did not consider the challenged information in imposing sentence.
VIII. Ramirez’ Identification
Ramirez claims on appeal that Mesa’s March 23 and in-court identifications violated due process and tainted his convictions. An identification procedure violates due process if it is “unnecessarily suggestive and conducive to irreparable mistaken identification.”
Stovall v. Denno,
On March 22, Mesa viewed Ramirez in close quarters for four or five minutes in normal light. Mesa, like the witness in Manson, was a trained officer: he knew he would have to identify the conspirators, and he was attentive to detail, even under pressure. He identified and arrested Ramirez within twenty-four hours of the crime. At trial about three months later Mesa again identified Ramirez, gave a detailed account of the March 22 transaction, and testified that he had “no doubt whatsoever” about Ramirez’ identity. He also explained that, during the March 23 arrest, he simply picked Ramirez and the other defendants out of a crowd on the boat; he did not use a one-on-one show-up or a planned line-up.
Given all these circumstances, Mesa’s identification was neither overly suggestive nor likely to result in misidentification.
IX. Conclusion
The evidence is sufficient to support the convictions, and no fatal variance existed between the indictment and the proof at trial. Manotas’ sentence is not “cruel and unusual,” but he is entitled to a new sentencing hearing. Finally, Mesa’s identification of Ramirez was proper.
The convictions are affirmed, and we order a new sentencing hearing for defendant Manotas only.
AFFIRMED.
*370 REMANDED FOR RESENTENCING OF APPELLANT MANOTAS.
Notes
. The evidence makes it clear that Manotas, the only appellant to complain about a variance, knew about the cocaine Buyoc possessed earlier in the evening. When Buyoc showed up at 11:30, he asked her if she had been arrested after she had left the ship, and he persuaded Ramirez to trust Buyoc.
. In
United States v. Ylda,
.
Cf. Kotteakos v. United States,
. Since Manotas was sentenced, Congress increased the maximum imprisonment for each of his crimes to forty years. See 21 U.S.C. § 841(b)(1)(B) (distributing 500 grams or more); 21 U.S.C. § 960(b)(2) (importing 500 grams or more).
. Tucker was sentenced for bank robbery in 1953, and the sentencing judge knew that he had three prior convictions. After sentencing, two of Tucker’s three prior convictions were invalidated by
Gideon
v.
Wainwright,
. For instances, in making parole decisions a parole commission may consider presentence reports, reports from prosecutors, and any other "relevant information” about the prisoner.
See
28 C.F.R. § 2.19; 18 U.S.C. § 4207;
Page v. United States Parole Commission,
